fix: gt sling failing to recognize beads after JSONL updates (#290)

* fix(sling): route bd mol commands to target rig directory

Executed-By: gastown/crew/jv
Rig: gastown
Role: crew

* Fix CI: enable beads custom types during install

Executed-By: gastown/crew/jv
Rig: gastown
Role: crew

* Fix gt sling failing to recognize beads after JSONL updates

Executed-By: gastown/crew/jv
Rig: gastown
Role: crew

---------

Co-authored-by: joshuavial <git@codewithjv.com>

internal/cmd/install.go

@@ -362,14 +362,6 @@ func initTownBeads(townPath string) error {
 		fmt.Printf("   %s Could not verify repo fingerprint: %v\n", style.Dim.Render("⚠"), err)
 	}
 
-	// Register Gas Town custom types (agent, role, rig, convoy, slot).
-	// These types are not built into beads core - they must be registered
-	// before creating agent/role beads. See gt-4ke5e for context.
-	if err := ensureCustomTypes(townPath); err != nil {
-		// Non-fatal but will cause agent bead creation to fail
-		fmt.Printf("   %s Could not register custom types: %v\n", style.Dim.Render("⚠"), err)
-	}
-
 	// Ensure routes.jsonl has an explicit town-level mapping for hq-* beads.
 	// This keeps hq-* operations stable even when invoked from rig worktrees.
 	if err := beads.AppendRoute(townPath, beads.Route{Prefix: "hq-", Path: "."}); err != nil {